Disabling upgrades?

[unmerged(46887)]

I know that you have to modify some txt. files, but don't know what.
It is easy for ships but for inf. and armor?
Wouldn't be more logical to be able to build lesser advanced tanks for less ic and time?

 

[Ayeshteni]

keep your upgrade slider at 0%?

Ayeshteni

 

[unmerged(46887)]

keep your upgrade slider at 0%?

Ayeshteni

Thanks! I thought that I should delete that line so it didn't work.